Desmid of the month
September 2007

Netrium interruptum

Netrium interruptum may readily distinguished from Netrium digitus by its cylindric cells that abruptly taper to the
truncate poles. In addition to that, each cell contains four chloroplasts provided
with entire, longitudinal ridges. Whereas Netrium digitus is commonly
occurring in all kinds of shallow, acidic, oligo-mesotrophic water bodies, Netrium
interruptum is much more rare. In the Netherlands it is only known from
some mesotrophic quaking fens at the transition of Pleistocene to Holocene
deposits.